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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<arpa/inet.h>
void main(){
char *ip="127.0.0.1";
int port=5555;
int server_sock, client_sock;
struct sockaddr_in server_addr,client_addr;
socklen_t addr_size;
char buffer[1024];
int n;
server_sock=socket(AF_INET,SOCK_STREAM,0);
if(server_sock<0){
	perror("[-]Socket error");
	exit(1);
	}
printf("[+]TCP Server Socket Connected.");
memset(&server_addr,'\0',sizeof(server_addr));
server_addr.sin_family=AF_INET;
server_addr.sin_port=port;
server_addr.sin_addr.s_addr=inet_addr(ip);
n=bind(server_sock,(struct sockaddr *)&server_addr,sizeof(server_addr));
if(n<0){
	perror("[-]Bind Error.");
	exit(1);
}
printf("[+]Bind to the port number:%d\n",port);
listen(server_sock,10);
printf("Listening...\n");
while(1){
	addr_size=sizeof(client_addr);
	client_sock=accept(server_sock,(struct sockaddr *)&client_addr,&addr_size);
	printf("[+]Client Connected.");
	bzero(buffer,1024);
	recv(client_sock,buffer,sizeof(buffer),0);
	printf("Client: %s\n",buffer);
	printf(buffer,1024);
	strcpy(buffer,"HELLO THIS IS SERVER.");
	printf("Server: %s\n",buffer);
	send(client_sock,buffer,strlen(buffer),0);
	close(client_sock);
	printf("[+]Client Disconnected.");
}
}